Arphi Electronics Pvt. Ltd. Provides Portable Speech Trainer with in-built Voltage Regulator. Arphi Electronics Pvt. Ltd. Focuses on developing and supporting hearing health solutions. This Speech trainer is sleek portable instrument, built into sturdy classic briefcase housing [models 300 B] or handy calculator type box [model 301 MK I] which can be carried to home, Clinic or school with ease.
